package com.wx.wxpush.util;

import cn.hutool.http.HttpRequest;
import cn.hutool.http.HttpResponse;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;

import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;
import java.net.UnknownHostException;

/**
 * 获取地址工具类
 *
 * @Author interest
 **/
public class AddressUtils {

    /**
     * 根据IP地址获取地理位置
     */
    public static String getAddressByIP(String ip) {
        if (StringUtils.isBlank(ip)) {
            return "";
        }
        if ("127.0.0.1".equals(ip)) {
            return "局域网，无法获取位置";
        }
        String url = "https://sp0.baidu.com/8aQDcjqpAAV3otqbppnN2DJv/api.php?resource_id=6006&format=json&query=" + ip;
        HttpResponse res = HttpRequest.get(url).execute();
        if (200 != res.getStatus()) {
            return "获取位置失败";
        } else {
            JSONObject resJson = JSONObject.parseObject(res.body());
            JSONArray resArr = JSONArray.parseArray(resJson.getString("data"));
            resJson = JSONObject.parseObject("" + resArr.get(0));
            return resJson.getString("location");
        }
    }

        /**
         * 获取ip
         *
         * @param request
         * @return
         */
        public static String getIpAddr(HttpServletRequest request) {
            String ipAddress = null;
            try {
                ipAddress = request.getHeader("x-forwarded-for");
                if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
                    ipAddress = request.getHeader("Proxy-Client-IP");
                }
                if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
                    ipAddress = request.getHeader("WL-Proxy-Client-IP");
                }
                if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
                    ipAddress = request.getRemoteAddr();
                    if (ipAddress.equals("127.0.0.1")) {
                        // 根据网卡取本机配置的IP
                        InetAddress inet = null;
                        try {
                            inet = InetAddress.getLocalHost();
                        } catch (UnknownHostException e) {
                            e.printStackTrace();
                        }
                        ipAddress = inet.getHostAddress();
                    }
                }
                // 对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
                if (ipAddress != null && ipAddress.length() > 15) {
                    // "***.***.***.***".length()
                    // = 15
                    if (ipAddress.indexOf(",") > 0) {
                        ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
                    }
                }
            } catch (Exception e) {
                ipAddress = "";
            }
            return ipAddress;
        }


    }



